Computers and Concrete

  • 제20권1호
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  • Pages.99-110
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  • 2017
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Concrete structures under combined mechanical and environmental actions: Modelling of durability and reliability

  • Vorechovska, Dita (Institute of Structural Mechanics, Faculty of Civil Engineering, Brno University of Technology) ;
  • Somodikova, Martina (Institute of Structural Mechanics, Faculty of Civil Engineering, Brno University of Technology) ;
  • Podrouzek, Jan (Institute of Structural Mechanics, Faculty of Civil Engineering, Brno University of Technology) ;
  • Lehky, David (Institute of Structural Mechanics, Faculty of Civil Engineering, Brno University of Technology) ;
  • Teply, Bretislav (Institute of Chemistry, Faculty of Civil Engineering, Brno University of Technology)
  • 투고 : 2016.01.01
  • 심사 : 2017.03.25
  • 발행 : 2017.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Service life assessments which do not include the synergy between mechanical and environmental loading are neglecting a factor that can have a significant impact on structural safety and durability assessment. The degradation of concrete structure is a result of the combined effect of environmental and mechanical factors. In order to make service life design realistic it is necessary to consider both of these factors acting simultaneously. This paper deals with the advanced modelling of concrete carbonation and chloride ingress into concrete using stochastic 1D and 2D models. Widely accepted models incorporated into the new fib Model Code 2010 are extended to include factors that reflect the coupled effects of mechanical and environmental loads on the durability and reliability of reinforced concrete structures. An example of cooling tower degradation by carbonation and an example of a bended reinforced concrete beam kept for several years in salt fog are numerically studied to show the capability of the stochastic approach. The modelled degradation measures are compared with experimental results, leading to good agreement.

키워드

과제정보

연구 과제번호 : AdMaS UP-Advanced Materials, Structures and Technologies, National Sustainability Programme I

연구 과제 주관 기관 : SPADD, Czech Republic (GACR), Ministry of Education of the Czech Republic

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피인용 문헌

  1. Methodology for the quantification of concrete sustainability vol.174, pp.None, 2018, https://doi.org/10.1051/matecconf/201817401006